Supporting channel for wall mounted track lighting system
FIG. 1 is a top, front perspective view of a supporting channel for wall mounted track lighting system showing our new design; 
     FIG. 2 is a cross-sectional view thereof as taken along line 2--2 of FIG. 1; 
     FIG. 3 is a cross-sectional view of a second embodiment of our new design; 
     FIG. 4 is a cross-sectional view of a third embodiment of our new design. 
     FIG. 5 is a cross-sectional view of a fourth embodiment of our new design. 
     It is understood that all undisclosed exterior surfaces of all embodiments are plain and unornamented.